Hi,

i'm working in a speech/non speech detection project, and i've seen that dcoffset and
preemphasis data filters are usually used in speech recognition, but i don't know the reason.
Has anybody know any text (paper, book, web) that explains this processes and others tipical
processes? I thought dcoffset is only used to obtain low numbers in posterior operations, but i
don't know more.

Thank you

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